Heancharoen W, Vinijkul R, Boonniyom P. Improving the Service Level of the Office of Academic Promotion and Registration Kamphaeng Phet Rajabhat University. jg-mcukk [internet]. 2025 Dec. 30 [cited 2026 Sep. 2];12(4):1-12. available from: https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/279989